CN204145485U - A kind of long distance wireless broadcast communication equipment - Google Patents
A kind of long distance wireless broadcast communication equipment Download PDFInfo
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- CN204145485U CN204145485U CN201420628193.0U CN201420628193U CN204145485U CN 204145485 U CN204145485 U CN 204145485U CN 201420628193 U CN201420628193 U CN 201420628193U CN 204145485 U CN204145485 U CN 204145485U
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- radiofrequency signal
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- communication equipment
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- 230000006854 communication Effects 0.000 title claims abstract description 51
- 238000004891 communication Methods 0.000 title claims abstract description 49
- 230000005236 sound signal Effects 0.000 claims abstract description 19
- 206010033799 Paralysis Diseases 0.000 abstract description 4
- 230000032683 aging Effects 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
Abstract
The utility model relate to a kind of long distance wireless broadcast communication equipment.Described long distance wireless broadcast communication equipment comprises: fixed radio station, is converted into radiofrequency signal for the audio signal that will send; Radio antenna, is connected with described fixed radio station, for sending described radiofrequency signal; One or more exterior aerial, for receiving the described radiofrequency signal from described radio antenna; One or more intercom, is connected with described one or more exterior aerial respectively, for the described radiofrequency signal received is converted into audio signal; And one or more loudspeaker, be connected with described one or more intercom respectively, for broadcasting the content of the described radiofrequency signal that described intercom receives.The utility model, by existing wired broadcasting power amplifier being replaced with fixed radio station and arranging intercom in loudspeaker settlement, solves the broadcast paralysis problem caused by aging circuit.
Description
Technical field
The utility model relates to the communications field, particularly, relates to a kind of long distance wireless broadcast communication equipment.
Background technology
Wire communication refers to that the transmission between communication equipment needs to connect through cable, namely utilizes the some transmission medium information modes such as aerial cable, coaxial cable, optical fiber, audio cable.Radio communication refers to the communication not needing physical connection line, and the feature namely utilizing electromagnetic wave signal to propagate in free space carries out a kind of communication mode of information exchange.Wireless Telecom Equipment great advantage is exactly environment, and do not need the restriction by cable, have certain mobility, can be communicated by wireless connections under mobile status, difficulty of construction is low, and cost is low.Current radio communication is changing corresponding technology allows transmission rate higher (speed of 802,11n can arrive 100Mbps and be not less than wire communication), and more stable convenience, so Wireless Telecom Equipment will be development trend.
Current each electric power plant coal transportation broadcast system, fire broadcast system generally adopt wired broadcasting.System line will be caused so long, and after aging circuit, failure rate is high.After circuit goes wrong, wired broadcasting power amplifier just cannot broadcast message to each loudspeaker settlement, and broadcast capability is in paralyzed state.In addition, the wire broadcasting function that system adopts is single, only has broadcast capability, does not have intercommunication function.Therefore, wired broadcasting can only broadcast.In emergency situations, personnel's callback needs to rely on other system on the spot.
Summary of the invention
For overcoming above-mentioned defect of the prior art, the utility model spy provide a kind of long distance wireless broadcast communication equipment that when not using circuit, broadcast can be radioed to loudspeaker settlement.
The utility model provides a kind of long distance wireless broadcast communication equipment, and this long distance wireless broadcast communication equipment comprises: fixed radio station, is converted into radiofrequency signal for the audio signal that will send; Radio antenna, is connected with described fixed radio station, for sending described radiofrequency signal; One or more exterior aerial, for receiving the described radiofrequency signal from described radio antenna; One or more intercom, is connected with described one or more exterior aerial respectively, for the described radiofrequency signal received is converted into audio signal; And one or more loudspeaker, be connected with described one or more intercom respectively, for broadcasting the content of the described radiofrequency signal that described intercom receives.
Wherein, the audio signal of described intercom also for sending is converted into radiofrequency signal, and described intercom carries out wireless telecommunications as required and between described fixed radio station or other intercoms.
Wherein, described exterior aerial is connected by the antenna opening of plug special with described intercom.
Wherein, described exterior aerial also for sending the radiofrequency signal from described intercom, and/or receives the radiofrequency signal from other intercoms.
Wherein, described radio antenna is also for receiving the radiofrequency signal from described exterior aerial.
Wherein, described radiofrequency signal also for receiving the radiofrequency signal from described radio antenna, and is converted into audio signal by described fixed radio station.
Wherein, described loudspeaker are loudspeaker, are connected by the antenna opening of plug special with described intercom.
Wherein, described equipment also comprises: power supply changeover device, for 220V supply voltage is converted to 8V, and powers for described intercom; Reserve battery, for when described intercom is dismantled from described long distance wireless broadcast communication equipment, for described intercom is powered; Charger, for when described intercom is not dismantled from described long distance wireless broadcast communication equipment, for described reserve battery charges; And miniature antenna for subsequent use, for when described intercom is dismantled from described long distance wireless broadcast communication equipment, receive for described intercom and send radiofrequency signal.
Wherein, described intercom comprises: PTT key, for carrying out intercommunication with described fixed radio station; And knob, for switching the channel of described intercom.
Wherein, the small power amplifier of 8V power supply is installed between the earphone mouth of described intercom and loudspeaker.
The utility model, by existing wired broadcasting power amplifier being replaced with fixed radio station and arranging intercom in loudspeaker settlement, solves the broadcast paralysis problem caused by aging circuit.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for specification, is used from explanation the utility model, but does not form restriction of the present utility model with embodiment one below.In the accompanying drawings:
Fig. 1 is the schematic diagram of communication between the intercom of the long distance wireless broadcast communication equipment that the utility model provides and fixed radio station; And
Fig. 2 is the schematic diagram of communication between the intercom of the long distance wireless broadcast communication equipment that the utility model provides and intercom.
Description of reference numerals
10 intercom 20 loudspeaker
30 fixed radio station 40 exterior aerials
50 radio antennas
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the utility model, is not limited to the utility model.
Fig. 1 is the schematic diagram of communication between the intercom of the long distance wireless broadcast communication equipment that the utility model provides and fixed radio station.As shown in Figure 1, this long distance wireless broadcast communication equipment comprises: fixed radio station 30, is converted into radiofrequency signal for the audio signal that will send; Radio antenna 50, is connected with described fixed radio station 30, for sending described radiofrequency signal; One or more exterior aerial 40, for receiving the described radiofrequency signal from described radio antenna 50; One or more intercom 10, is connected with described one or more exterior aerial 40 respectively, for the described radiofrequency signal received is converted into audio signal; And one or more loudspeaker 20, be connected with described one or more intercom 10 respectively, for broadcasting the content of the described radiofrequency signal that described intercom receives.
Wherein, described exterior aerial 40 is connected by the antenna opening of plug special with described intercom 10.
Preferably, described loudspeaker 20 are loudspeaker, are connected by the earphone mouth of plug special with described intercom 10.By this, staff very clearly can hear the content that loudspeaker 20 are play.
Although present inventor finds that described loudspeaker 20 are loudspeaker, and can improve sound effect, in strong noise region, sound effect is still not obvious.Therefore, preferably, the small power amplifier of 8V power supply is installed between the earphone mouth and loudspeaker 20 of described intercom 10.By this, staff very clearly can hear the content that loudspeaker 20 are play in strong noise region.
Wherein, described intercom comprises: PTT key, for carrying out intercommunication with described fixed radio station; And knob, for switching the channel of described intercom.
Described equipment also comprises: power supply changeover device, for 220V supply voltage is converted to 8V, and powers for described intercom and 8V small power amplifier; Reserve battery, for when described intercom is dismantled from described broadcaster, for described intercom is powered; Charger, for when described intercom is not dismantled from described broadcaster, for described reserve battery charges; And miniature antenna for subsequent use, for when described intercom is dismantled from described broadcaster, receive for described intercom and send radiofrequency signal.
Described fixed radio station 30 is provided with two channels.One channel is used for the daily intercom 10 to each loudspeaker settlement and broadcasts message, and receives the message from intercom 10; Two channels are communication channel for subsequent use, use when emergency contact.Wherein, a channel is alien frequencies channel, and two channels are straight frequency domain channel.That is, a channel sends the frequency of message and the frequency of receipt message is different, and it is the same with the frequency of receipt message that two channels send the frequency of message.
Described intercom 10 is provided with three channels.One channel is the same with the function of a channel of fixed radio station 30, broadcasts message, and receive the message from other intercom for other intercom to each loudspeaker settlement.Two channels are the same with the function of two channels of fixed radio station 30, are communication channel for subsequent use, use when emergency contact.Three channels send the frequencies of message and the frequency of receipt message and a channel, and to send the frequency of the frequency of message and receipt message contrary.That is, the frequency of the transmission message of a channel is exactly the frequency of three CPCH reception message, and the frequency of the receipt message of a channel is exactly the frequency that three channels send message.The message that three channels send for receiving fixed radio station 30, and send message to fixed radio station 30 as required.
Under normal circumstances, fixed radio station 30 uses a channel, and intercom 10 uses three channels.If the fixed radio station in control room 30 will broadcast message to the intercom 10 of each loudspeaker settlement, the audio signal that fixed radio station 30 can will send is converted into radiofrequency signal, and makes frequency match one channel of radiofrequency signal.The radio antenna 50 be connected with fixed radio station 30 is for sending radiofrequency signal.Exterior aerial 40, for receiving the radiofrequency signal from radio antenna 50.The intercom 10 be connected with exterior aerial 40, for the radiofrequency signal of reception is converted into audio signal, and makes frequency match three channel of radiofrequency signal.The loudspeaker 20 be connected with intercom 10, for broadcasting the content of the radiofrequency signal that intercom receives.
If there are abnormal conditions loudspeaker settlement, staff directly can also press fixed radio station 30 intercommunication in PTT key on intercom 10 and control room.The audio signal that intercom 10 can will send is converted into radiofrequency signal, and makes frequency match three channel of radiofrequency signal.The exterior aerial 40 be connected with intercom 10 is for sending radiofrequency signal.Radio antenna 50, for receiving the radiofrequency signal from exterior aerial 40.The fixed radio station 30 be connected with radio antenna 50, for the radiofrequency signal of reception is converted into audio signal, and makes frequency match one channel of radiofrequency signal, and the content of playing audio signal.
Fig. 2 is the schematic diagram of communication between the intercom of the long distance wireless broadcast communication equipment that the utility model provides and intercom.Alien frequencies communication is carried out owing to using the fixed radio station 30 of a channel and using between the intercom 10 of three channels, can not intercommunication between each intercom 10.If need, all intercoms 10 by knob by channel switch to a channel, so current intercom 10 can play effect and the mutual intercommunication of other intercoms of temporary fixed.The audio signal that intercom 10 can will send is converted into radiofrequency signal, and makes frequency match one channel of radiofrequency signal.The exterior aerial 40 be connected with intercom 10 is for sending radiofrequency signal.Exterior aerial 40, for receiving the radiofrequency signal from other exterior aerial 40.The intercom 10 be connected with exterior aerial 40, for the radiofrequency signal of reception is converted into audio signal, and makes frequency match one channel of radiofrequency signal.The loudspeaker 20 be connected with intercom 10, for broadcasting the content of the radiofrequency signal that intercom 10 receives.
In case of emergency, intercom 10 can disassemble and use as mobile intercom from long distance wireless broadcast communication equipment.Mobile intercom 10 will by knob by channel switch to two channels.Wherein, reserve battery in long distance wireless broadcast communication equipment, for when intercom 10 is dismantled from long distance wireless broadcast communication equipment, for intercom is powered and miniature antenna for subsequent use in long distance wireless broadcast communication equipment, for when intercom 10 is dismantled from long distance wireless broadcast communication equipment, receive for intercom 10 and send radiofrequency signal.Communication process between mobile intercom 10 and mobile intercom 10 does not repeat them here.Because the communication process of mutually broadcasting between it and intercom 10 is closely similar, the channel just used is different.
The utility model, by existing wired broadcasting power amplifier being replaced with fixed radio station and arranging intercom in loudspeaker settlement, solves the broadcast paralysis problem caused by aging circuit, and adds broadcast capability and intercommunication function.
Although the utility model is by disclosed in above-described embodiment, but above-described embodiment and be not used to limit the utility model, any the utility model the technical staff in the technical field, not departing from spirit and scope of the present utility model, should do various change and amendment.Therefore the scope that protection range of the present utility model should define with appended claims is as the criterion.
Claims (10)
1. a long distance wireless broadcast communication equipment, is characterized in that, this equipment comprises:
Fixed radio station, is converted into radiofrequency signal for the audio signal that will send;
Radio antenna, is connected with described fixed radio station, for sending described radiofrequency signal;
One or more exterior aerial, for receiving the described radiofrequency signal from described radio antenna;
One or more intercom, is connected with described one or more exterior aerial respectively, for the described radiofrequency signal received is converted into audio signal; And
One or more loudspeaker, are connected with described one or more intercom respectively, for broadcasting the content of the described radiofrequency signal that described intercom receives.
2. long distance wireless broadcast communication equipment according to claim 1, it is characterized in that, the audio signal of described intercom also for sending is converted into radiofrequency signal, and described intercom carries out wireless telecommunications as required and between described fixed radio station or other intercoms.
3. long distance wireless broadcast communication equipment according to claim 2, is characterized in that, described exterior aerial is connected by the antenna opening of plug special with described intercom.
4. long distance wireless broadcast communication equipment according to claim 3, is characterized in that, described exterior aerial also for sending the radiofrequency signal from described intercom, and/or receives the radiofrequency signal from other intercoms.
5. long distance wireless broadcast communication equipment according to claim 1, is characterized in that, described radio antenna is also for receiving the radiofrequency signal from described exterior aerial.
6. long distance wireless broadcast communication equipment according to claim 1, is characterized in that, described radiofrequency signal also for receiving the radiofrequency signal from described radio antenna, and is converted into audio signal by described fixed radio station.
7. long distance wireless broadcast communication equipment according to claim 1, is characterized in that, described loudspeaker are loudspeaker, is connected with the earphone mouth of described intercom by plug special.
8. long distance wireless broadcast communication equipment according to claim 1, is characterized in that, described equipment also comprises:
Power supply changeover device, for 220V supply voltage is converted to 8V, and powers for described intercom;
Reserve battery, for when described intercom is dismantled from described long distance wireless broadcast communication equipment, for described intercom is powered;
Charger, for when described intercom is not dismantled from described long distance wireless broadcast communication equipment, for described reserve battery charges; And
Miniature antenna for subsequent use, for when described intercom is dismantled from described long distance wireless broadcast communication equipment, receives for described intercom and sends radiofrequency signal.
9. long distance wireless broadcast communication equipment according to claim 1, is characterized in that, described intercom comprises:
PTT key, for carrying out intercommunication with described fixed radio station; And
Knob, for switching the channel of described intercom.
10. long distance wireless broadcast communication equipment according to claim 1, is characterized in that, is provided with the small power amplifier of 8V power supply between the earphone mouth of described intercom and loudspeaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420628193.0U CN204145485U (en) | 2014-10-27 | 2014-10-27 | A kind of long distance wireless broadcast communication equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420628193.0U CN204145485U (en) | 2014-10-27 | 2014-10-27 | A kind of long distance wireless broadcast communication equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204145485U true CN204145485U (en) | 2015-02-04 |
Family
ID=52422146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420628193.0U Active CN204145485U (en) | 2014-10-27 | 2014-10-27 | A kind of long distance wireless broadcast communication equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204145485U (en) |
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2014
- 2014-10-27 CN CN201420628193.0U patent/CN204145485U/en active Active
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